I wonder if I could tap the list here for some advice.

I'm writing a score writer front-end in python using the csound API.

The big idea with this project, is to be able to quickly change the score and 
re-render with having csound reload the whole orchestra/csd file for every 
simple score change.  So i'm simply calling the csoundCompile and all the 
prequisites once at the beginning of my application (or whenever the user 
asks to reload the orchestra/csd)

Then for each renderering, I call csoundScoreRewind and then csoundScoreEvent 
for each note.

Which works as expected, except the output wav file simply grows with easy 
pass.  i.e. it  csoundScoreRewind doesn't clear it, like would be useful for 
this case.

Now I can alternatively not use wav file output at all, and use 
csoundSetHostImplementedAudioIO and manually fish out the samples, and write 
them to a wav file myself.  But this is python and that hideously slow.

So the questions are:
1) Is there a way to restart the wav file output without reloading the 
orchestra/csd?

OR

2) Is there a quick way to fish out the output buffer samples into a python 
string or array, for writing out to file using the python wav module?

The best i have so far is something like:

ob=csnd.csoundGetOutputBuffer(self.cs)
fa=csnd.floatArray.frompointer(ob)
sa=array.Array('h',[0]*buffersize*2)
for n in range(buffersize*2):	
	sa[n]=fa[n]*32767
wavdata=sa.tostring()

which really SUCKS performance-wise (not surprisingly).  

I don't want to write a C/SWIG function to do just this, since i want to be 
able to give this to people who aren't up to running compilers.